High-tension switch.



R. J. M. DANLEY & H. S. BOLTON.

HIGH TENSION SWITCH.

APPLICATION FILED JAN. 9. 1914.

Patentd July 7, 1914,

sums to". n. c.

UNITED STATESPATENT oFFroE.

ROBERT J. M. DANLEY AND HENRY S. BOLTON, OF TOLUGA, MEXICO.

HIGH-TENSION SWITCH.

Specification of Letters Patent.

Patented July 7 1914.

Application filed January 9, 1914. Serial No. 811,143.

To all whom it may concern.

Be it known that we, ROBERT J. M. DAN- LEY and HENRY S. BOLTON, citizensof the United States, residing at Toluca, Mexico,

I have invented certain new and useful Imdisconnecting switches for hightension lines and has for one of its objects the v construction of. aswitch of a comparatively cheap. and simple construction, which avoidsthe useof special cross arms or other supporting structures, and whichmay be interposedin a length of line with facility without necessitatingthe dead ending or ounding of any portion of the line wires. Anotherobject of our invention is to so construct'and arrange the switchelements that they may be readily opened and closed vfrom a distance,and when closed will maintain good electrical contact by the weight ofone of the elements, without danger of the switch being inadvertentlyopened.

With these and other objects in view, our invention consists of asocket, interposed between the two alining conductors of the line andelectrically insulated from one of them in combination with a plugmechanically and electrically co'nnected'to the.other of saidconductors, which plug is adapted to "fit into said socket and eectrically connect the two conductors together.

v More specifically, our invention contemplates supporting the socket,which is preferably open at both ends, with its axis substantiallvertical and making the plug of such weight that when it is dropped intothe socket, it will maintain the parts in good electrical contact.

In the drawings: Figure 1 is a side view Referring to the drawings, alength of an overhead high tension line is shown which is suitablysupported in the usual manner, one of: such supports being shown whichcomprises a pet-ticoat insulator 1 of the usual construction carried bya crossarm 2, mounted .op a pole 3. Interposed in this length of line,is an insulator 4, which mechanically connects, but electricallyinsulates, the two alining line wires 5 and 6. A disk insulator of a'type which is ordinarily used in high tension work is shown, but theparticulartype of insulator formsino part of the present invention andany desired form may be. used which will withstand the disruptiveelectrical discharges occurring in high tension lines. The line wire'5is suitably secured to the insulator 4 by means of a pivoted eye 6 whichis carried by a stud 6 projecting laterally therefrom.

A metallic sleeve 7 which is carried by the reduced portion of the diskinsulator is provided with spaced ears 8 at its outer end. One elementof the switch which comprises a tapered socket 9, preferably cone-shapedand open at both ends, is provided with a flange 1O projecting laterallyfrom one side of the socket at its upper end This flange has a circularopening 11 through which a pin 12 passes to rotatably support a socketbetween the spaced lugs 8. The peripheral edge of the flange 10 iscurved-and has an annular groove 13 formed therein. The line wire 6which is supported on-the insulator 1 extends in the form of a loop 14,around the peripheral edge of theflange-IO and fits into the groove 13-therein, the free end of the wire being brought back and secured to theline wire at a point to the rear of the petticoat insulator 1. Thisinsulator has an annular groove therein adjacent; its top in which theextremities of the loop ll are secured as at 14: to maintain the loop insubstantially a horizontal plane -which will in 2O the solid plug, sothat when it is dropped A switch plug 15 which is preferably solid andtapered to fit snugly within the plug socket 9,- has attached thereto atits upper end a ring 16 which is of a relatively large diameter andprojecting from the top of the ring is a knob 17 having a centrallydisposed counterbored recess therein in which is secured one end of aflexible conductor 18, the other end of which is connected bothelectrically and mechanically to the line wire 5. The length of the plug15 is sufficient to permit its end to project beyond thelower open endof the plu socket 9 when inplace therein, so that if tie plug shouldbecome stuck or frozen, it may be readily removed by striking its lowerend. i

' The plug and plug socket may be of any desired conductive materialwhich will withstand climatic conditions, but a heavy metal,

such 'as brass should preferably be used for into the plug socket itwill maintaingood electrical connection therewith due to its own weight.

In the open position of the switch, the plug 15 hangs vertically asshown in Fig. 2. To close the switch, the ring 16 carried by the plug 15is engaged by a switch hook which may consist of any form of hookmounted on an insulating rod so that the switch may be 0 erated from adistance, the ring 12 being 0? sufliciently large diameter to insurethat the plug may be easily located even at night. The plug is thencarried on theswitch hook to a point directly above the plug socket anddropped thereinto where it fits snugly and maintains the parts in goodelectrical contact,.without any dani 'ger of inadvertent displacement.

Since a single insulator ls'ufiices to maintain the two, alining linewires-50f the line, and also the switch elementsg'whenin their openposition, insulated -from=f each other, there is no necessity of deadendin" any por tion of the line wires .which' requentlycauses'trouble'due to the breaking" downof the insulators. Furthermore,I 'since the switch is located at an unsupported point'in the line, itmay readily be installed at a comparatively low cost without requiringany special form of cross arming or other supporting structures,especially adapting the switch foruse with existing high tension lines.

Having described our invention, we claim:

1. A high tension disconnecting switch comprising an insulatorinterposed in a length of line at an unsupported point, said insulatorbeing mechanically connected to the two alining wires of the line, aswitch element supported b said insulator and electrically insulated romone of said wires and a second switch element electrically andmechanically connected to that one ofsaid line wires from which thefirst named switch element is insulated.

2. A high tension disconnecting switch comprising a conductive socketinterposed in a length of line, said socket being mechanically connectedto the two alining wires of the line and electrically insulated from oneof. them, a, plug adapted to fit into said socket, and means forelectrically and mechanically connecting said plug to that one of theline wires from which saidsocket is insulated.

3. A high tension disconnecting switch comprising a conductive socketinterposed in a length of line, said socket being supported in verticalposition between the two alining line wires of the line and electricallyconnected to one of said wires and insulated from the other, a .plugadapted to fit into said socket, and means for electrically andmechanically connecting said plug to said sulating it from'the-iother-an'd a'conductive plug greater in length thanwsaid socketadapted to fit v therein, said-"plng'sbeing electrically. andmechanically connected to said other of thelinewires.

5. high tension disconnecting-' switch compr sing a conductive socketinterposed in a length of line, and means for electrically connectingsaid socket to one of the two alining wires of the line and forinsulating it from. the other, a solid conductive plug and means forelectrically and mechanically connecting said plug'to said other of saidwires,'said plug being adapted to fit snugly in said socket and tomaintain good electrical contact therewith due to its own weight.

6. The combination with the two alining line wires of a line, of aninsulator mechanically connected to one of said wires, a conductivesocket mounted on said insulator, the other of said line wires having aloop therein passing around said socket, means for supporting said loopto maintain s'aid socket in a substantially vertical position, and aplug, mechanica ly and electrically connected to said first named linewire, adapted to fit into said socket.

7. The combination with two alining wires of a line, of an insulatormechanically connected to one of said wires, a conductive socket mountedon said insulator, means for connecting the other line wire to saidinsulator and for maintaining saidsocket in a In Witness whereof, Wesubscribe our sigsubstantially ,vertical position, means for natures, inthe presence of two Witnesses..- 1o electrically'connecting said socketto one of ROBFRT J M D ANLEY said wires-and for insulating it from theHENfiY S L other, a plug for said socket and means for mechanically andelectrically connecting Witnesses: said plug to that one of the lineWines; from KYLE B. PRICE, which the socket is insulated. JOHN D. VANHORN.

Copies of this patent may be obtained tonnes cents each, by addressingthe Commissioner of Patents, Washington, D. G.

